feat(stacks): support compose v2.0 stack (#1963)

api/http/handler/auth/authenticate.go

@@ -0,0 +1,79 @@
+package auth
+
+import (
+	"net/http"
+
+	"github.com/asaskevich/govalidator"
+	"github.com/portainer/portainer"
+	httperror "github.com/portainer/portainer/http/error"
+	"github.com/portainer/portainer/http/request"
+	"github.com/portainer/portainer/http/response"
+)
+
+type authenticatePayload struct {
+	Username string
+	Password string
+}
+
+type authenticateResponse struct {
+	JWT string `json:"jwt"`
+}
+
+func (payload *authenticatePayload) Validate(r *http.Request) error {
+	if govalidator.IsNull(payload.Username) {
+		return portainer.Error("Invalid username")
+	}
+	if govalidator.IsNull(payload.Password) {
+		return portainer.Error("Invalid password")
+	}
+	return nil
+}
+
+func (handler *Handler) authenticate(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
+	if handler.authDisabled {
+		return &httperror.HandlerError{http.StatusServiceUnavailable, "Cannot authenticate user. Portainer was started with the --no-auth flag", ErrAuthDisabled}
+	}
+
+	var payload authenticatePayload
+	err := request.DecodeAndValidateJSONPayload(r, &payload)
+	if err != nil {
+		return &httperror.HandlerError{http.StatusBadRequest, "Invalid request payload", err}
+	}
+
+	u, err := handler.UserService.UserByUsername(payload.Username)
+	if err == portainer.ErrUserNotFound {
+		return &httperror.HandlerError{http.StatusBadRequest, "Invalid credentials", ErrInvalidCredentials}
+	} else if err != nil {
+		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve a user with the specified username from the database", err}
+	}
+
+	settings, err := handler.SettingsService.Settings()
+	if err != nil {
+		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve settings from the database", err}
+	}
+
+	if settings.AuthenticationMethod == portainer.AuthenticationLDAP && u.ID != 1 {
+		err = handler.LDAPService.AuthenticateUser(payload.Username, payload.Password, &settings.LDAPSettings)
+		if err != nil {
+			return &httperror.HandlerError{http.StatusInternalServerError, "Unable to authenticate user via LDAP/AD", err}
+		}
+	} else {
+		err = handler.CryptoService.CompareHashAndData(u.Password, payload.Password)
+		if err != nil {
+			return &httperror.HandlerError{http.StatusUnprocessableEntity, "Invalid credentials", ErrInvalidCredentials}
+		}
+	}
+
+	tokenData := &portainer.TokenData{
+		ID:       u.ID,
+		Username: u.Username,
+		Role:     u.Role,
+	}
+
+	token, err := handler.JWTService.GenerateToken(tokenData)
+	if err != nil {
+		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to generate JWT token", err}
+	}
+
+	return response.JSON(w, &authenticateResponse{JWT: token})
+}